---
product_id: 180711594
title: "BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs)"
brand: "bojack"
price: "€ 16.41"
currency: EUR
in_stock: true
reviews_count: 13
category: "Bojack"
url: https://www.desertcart.hr/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp
store_origin: HR
region: Croatia
---

# Slow-blow time-delay tech 4A current rating 250V voltage capacity BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs)

**Brand:** bojack
**Price:** € 16.41
**Availability:** ✅ In Stock

## Summary

> ⏳⚡ Fuse your gear with confidence—slow blow, fast peace of mind!

## Quick Answers

- **What is this?** BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) by bojack
- **How much does it cost?** € 16.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp)

## Best For

- bojack enthusiasts

## Why This Product

- Trusted bojack brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High Voltage Endurance:** Rated for 250V to safeguard your sensitive electronics
- • **Organized & Ready-to-Use:** Pack of 20 in a sleek plastic case for quick access and storage
- • **Reliable 4 Amp Protection:** Engineered to handle steady 4A current without fail
- • **Time-Delay Slow-Blow Design:** Absorbs inrush surges, preventing nuisance blowouts
- • **Compact Glass Tube Form Factor:** Standard 5x20mm size fits seamlessly in most devices

## Overview

BOJACK T4AL250V slow-blow glass fuses deliver precise 4A current protection at 250V, expertly designed to withstand surge currents with a time-delay feature. Packaged in a handy 20-piece case, these compact 5x20mm fuses are perfect for professionals and DIYers who demand reliable, long-lasting circuit protection for musical amps, home electronics, and more.

## Description

BOJACK 20 Pcs High Quality Slow-blow Glass Fuse Fuse model:T4AL250V Fuse Current: 4A Fuse Voltage: 250V Fuse Dimension:5x20mm/0.2x0.78 Inch The role of the Slow-blow fuse：The slow-blow fuse is also called a time-delay fuse. Its delay characteristic is maintained in the circuit when it has a non-fault pulse current and can protect against long-term overload. Some circuits have a current greater than a few times the normal operating current at the switching instant. Althoughthis current peak is very high, it occurs for a short period of time.We call it a pulse current or an inrush current or a surge current.Ordinary fuses can not withstand such currents. If such a circuituses an ordinary fuse, it may not be able to start normally. If a larger fuse is used, it will not be protected when the circuit is overloaded. The melt of the time-delay fuse is specially processed to absorbenergy. By adjusting the energy absorption, it can resist the inrushcurrent and protect the overload.

Review: Nice product for the price - I recently purchased these fuses as I like to fix electronics. The pack came with various options and sizes that were extremely handy. My primary use was for my guitar amp and boiler, and they've worked like a charm, keeping my devices running smoothly without any hiccups. These fuses are excellent value as they compare well against other options like Screwfix or B&Q. I like the plastic box as it organises them neatly, much better than a zip-lock bag. However, as good as they are, I would say the size can sometimes be misleading - one or two fuses did fit somewhat snugly but eventually went in just fine. All in all, this hasn’t been a deal breaker for me. I’d recommend these to anyone who dabbles with home electronics or needs a quick, reliable fix for their appliances. Good quality and definitely worth the purchase!
Review: Good alternative. - Just the right ones needed and none blown yet after all this time. Would definitely buy again.

## Features

- BOJACK 20 Pcs High Quality Slow-blow Glass Fuse
- Fuse Dimension: 5x20mm/0.2x0.78 Inch
- Fuse Current: 4A
- Fuse Voltage: 250V
- Package Quantity: 20 pcs Packed in a plastic storage case

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z6B774K |
| Amperage Capacity | 4 Amps |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 12,752 in DIY & Tools ( See Top 100 in DIY & Tools ) 37 in Fuses & Holders |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,099) |
| Date First Available | 15 Oct. 2019 |
| Item Package Quantity | 1 |
| Item Weight | 20 g |
| Item model number | BJ-SBT-4A |
| Manufacturer | BOJACK |
| Material | Glass |
| Package Dimensions | 5 x 3.8 x 1.6 cm; 20 g |
| Part number | BJ-SBT |
| Plug profile | Through-Hole Mount |
| Size | T4A |
| Voltage | 250 Volts |

## Product Details

- **AC adapter current:** 4 Amps
- **Brand:** BOJACK
- **Material:** Glass
- **Mounting type:** Through-Hole Mount
- **Voltage:** 250 Volts

## Images

![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 1](https://m.media-amazon.com/images/I/71OO2oMmVIL.jpg)
![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 2](https://m.media-amazon.com/images/I/61DQzciYQGL.jpg)
![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 3](https://m.media-amazon.com/images/I/71szzI99pRS.jpg)
![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 4](https://m.media-amazon.com/images/I/71zBKXPqiOL.jpg)
![BOJACK T4AL250V 5x20mm 4A 250V Slow Blow Fuses 4 Amp 250 Volt 0.2 x 0.78 Inch Glass Tube Time-delay Fuses(Pack of 20 Pcs) - Image 5](https://m.media-amazon.com/images/I/61c0Jum4A1L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice product for the price
*by M***K on 28 June 2024*

I recently purchased these fuses as I like to fix electronics. The pack came with various options and sizes that were extremely handy. My primary use was for my guitar amp and boiler, and they've worked like a charm, keeping my devices running smoothly without any hiccups. These fuses are excellent value as they compare well against other options like Screwfix or B&Q. I like the plastic box as it organises them neatly, much better than a zip-lock bag. However, as good as they are, I would say the size can sometimes be misleading - one or two fuses did fit somewhat snugly but eventually went in just fine. All in all, this hasn’t been a deal breaker for me. I’d recommend these to anyone who dabbles with home electronics or needs a quick, reliable fix for their appliances. Good quality and definitely worth the purchase!

### ⭐⭐⭐⭐⭐ Good alternative.
*by P***S on 22 November 2025*

Just the right ones needed and none blown yet after all this time. Would definitely buy again.

### ⭐⭐⭐⭐⭐ Fuses
*by C***R on 24 January 2026*

Good price and quick delivery

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp](https://www.desertcart.hr/products/180711594-bojack-t4al250v-5x20mm-4a-250v-slow-blow-fuses-4-amp)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-20*